Unusual D-Bus Daemon Child Process

Last updated 9 days ago on 2025-01-22
Created 10 days ago on 2025-01-21

About

This rule detects when an unusual child process is spawned from the `dbus-daemon` parent process. The `dbus-daemon` process is a message bus system that provides a way for applications to talk to each other. Attackers may abuse this process to execute malicious code or escalate privileges.
Tags
Domain: EndpointOS: LinuxUse Case: Threat DetectionTactic: PersistenceTactic: Privilege EscalationTactic: ExecutionData Source: Elastic EndgameData Source: Elastic DefendData Source: SentinelOneLanguage: eql
Severity
low
Risk Score
21
MITRE ATT&CK™

Persistence (TA0003)(opens in a new tab or window)

Privilege Escalation (TA0004)(opens in a new tab or window)

Execution (TA0002)(opens in a new tab or window)

License
Elastic License v2(opens in a new tab or window)

Definition

Rule Type
Event Correlation Rule
Integration Pack
Prebuilt Security Detection Rules
Index Patterns
logs-endpoint.events.process*endgame-*logs-sentinel_one_cloud_funnel.*
Related Integrations

endpoint(opens in a new tab or window)

sentinel_one_cloud_funnel(opens in a new tab or window)

Query
process where host.os.type == "linux" and event.type == "start" and event.action in ("exec", "exec_event", "start") and
process.parent.name == "dbus-daemon" and process.args_count > 1 and not (
  process.parent.args == "--session" or
  process.args in ("/usr/lib/software-properties/software-properties-dbus", "/usr/share/backintime/qt/serviceHelper.py") or
  process.name in ("dbus-daemon-launch-helper", "gnome-keyring-daemon", "abrt-dbus", "aptd", "usb-creator-helper") or
  process.executable like~ ("/usr/lib/*", "/usr/local/lib/*", "/usr/libexec/*", "/tmp/newroot/*")
)

Install detection rules in Elastic Security

Detect Unusual D-Bus Daemon Child Process in the Elastic Security detection engine by installing this rule into your Elastic Stack.

To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(opens in a new tab or window).